1.If the coefficients of x7x^7x7 and x8x^8x8 in the expansion of (2+x3)n\left(2 + \frac{x}{3}\right)^n(2+3x)n are equal, then the value of nnn is:a.151515b.454545c.555555d.565656Login to continueOnly logged in users canattempt or see the solution.
